Side bearing for cars.



No. 64U,267. Patented 1an. 2, |900. S. P. BUSH.

SIDE BEARING FOR CARS.

(Application fded Mar. 11, 1899.)

(No Model.)

WITNESSES l Yn/HfNToR y BY @ozywf A TORNEY SAMUEL I). BUSH, OF COLUMBUS, OIIIO.

SIDE BEARING FOR CARS.

SPEGIFGATION forming part of Letters Patent No. 640,267, dated January 2, 1900.

Application filed Marcil Il, 1899. Serial No 708,622. (N0 model.)

To ait whom it mag/conceive:

Be it known that I, SAMUEL P. BUSH, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Side Bearings for Oars, of which the following is a specification.

My invention relates to the improvement of side bearings for cars; and the objects of my invention are to provide a simple, inexpensive, and effective side bearing of improved construction whereby the contact between the upper and lower side-bearin g plates and an intermediate rolling bearing is maintained at all times regardless of the position of the car-body, and to produce other improvements the details of construction and advantages of which will be more fullypointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawings, in which- Figure lis an outer side elevation of my improved bearing. Fig. 2 is a centr-al sectional'view of the same, taken at right angles with that shown in Fig. 3. Fig. J is a sectional view on line :c of Fig. l, and Fig. 4 is a plan view of the truck-bolster plate or bottom side-bearing plate which is carried on the truck or bolster.

Similar numerals refer to similar parts throughout the several views.

l represents the top side-bearing plate, which, as indicated in the drawings, preferably has its under side corrugated or fluted transversely, as indicated at 2. 3 represents the bottom bearing-plate, which is affixed to and carried by the truck-bolster in the usual manner, this bottom bearing-plate being provided in the direction of the length of the car with a central rounded tongue or bearing projection l, and en opposite sides of the center of the length of said tongue t I provide one or more short rounded bearing projections or tongues 5, which extend at right angles with the direction of the length of the tongue e. Between these upper and lower bearing-plates Il and 8 I provide, in the manner hereinafter described in detail, an intermediate bearing, which consists, essentially, in a lower or body section 6 and an upper or cap section 7. The lower end portion of the section G is provided on its under side with a central bearing groove or recess 8, which extends from the front to the rear side thereof and which, as indicated in the drawings, is so curved or formed as to provide a rounded or concave bearing-surface, which is adapted to have a rolling contact with the projection 4 of the bottom side-bearing plate. I also provide the under side of the body-section G at points opposite the center of the length of the tongue 4 with one or more transverse grooves or recesses 9, which intersect the groove 8 and receive the shorter bearing projections 5 of the plate 3. In the central portion of the body-section 6 I provide a vertical slotted opening 10, through which passes the upper arm of a coupling yoke or link l1, the downwardly-extending arms of which e111- brace opposite sides of the plate 3 and the the lower arm of which extends beneathsaid plate, as shown more clearly in Fig. 3, said link or yoke 6 serving to so couple the body 6 and lower plate as to prevent any tendency toward their separation when the trucks are detached from the car.

As shown more clearly in Fig. 2 of the drawings, the cap-section 7 is designed to have its lower or skirt portion loosely em brace the upper end portion of the body-sec tion 6, the cap-top, however, being normally lifted above the upper side of the section G through the medium of springs l2, which at desirable intervals are arranged between said sections, the lower portions of said springs being, as shown, seated in sockets l3,for1ned in said section As also shown, the upper surface of the cap 7, which is convexed to a desirable degree, is provided or formed with transverse flutes or corrugations the surfaces of which are designed to have a bearing contact with the corresponding surfaces of the corrugations of the top side-bearing plate l, this contact being maintained at all times through the pressure of the springs 12. It will also be observed that these springs are such as to normally maintain the sections G and 7 at such distances from each other as to admit of that depression of the capsection which may be occasioned by the lateral inclination or tipping of the car-body without the shock resulting from contact of said sections.

From the construction herein shown and IOO described it will be seen that the. bearingbody 6 has itslower. curved surface 8"L provided with a roller bearing or contact with the upper rounded surface of the tongue or projection 4 and that this bearing is further increased by the contact of the grooved surface 9 with the transverse plate projections 5. The increased bearing-surface thus provided by the employment of the laterally-arranged projections 5 serves to distribute the bearing weight or pressure of the body 6 over a greater surface,thereby decreasing the tendency toward the wearing ,of the contacting surfaces. It will readily be seen, however, that the form and character of the bearingsurfaces are such las to permit a free or unretarded rolling movement of the intermediatebearing-body.

Through theemployment of thesprings Al2,

between the cap and body-section of' the intermediate bearing it will readily beunder` stood that not only is acontact always maintained between the uppercap-sectionandtopl sid'e-.bearingplate, but that a contact is also maintainedfbetween the lower plate 3 and the body-section 6, thereby obviating. any tendtopside-bearing plate and the engagement or working. together of the corrugations or flutedsurfaces ofA said plates difersfromnthe workingtogether. or engagement: of' rack or segmental teeth 4.and corresponding tooth-receiving: sockets, such as are ordinarily employedffor guidingadjoining parts, thisv difference lying.'l in theV fact that in the latter case the, engagement `of' the teetlrand teeth.-

receiving socketsafords simply asguide for` said; parts, whereas the construction herein shownfprovides av/frictional bearing and rolling, contact of the iluted surfaces.

Having now fully described my invention, what Iy claim, and desire `to secure by Letters Patent, is

stantially as specified.

2. In a side bearingy for cars, the combination with a top side-bearing plate adapted'to be supported from a car-body and a bottom side-bearing plate adapted to be supported from atruck and having projecting bearing portions 4and'5, the latter extending at right angles with the former, of a rolling bearingbody interposed between said top and bottom side-bearing plates, said-interposed bearing= body beingprovided with underside groovesor recesses adapted to receive asy described the projections ot' said bottornfbearing-plate, substantially asspeciiied.r

In aside bearing for cars, the combination witha top side-bearing plate anda bottom side-bearing plate, the latter being pro vided with raised bearing portions 4 and` 5 extending at'tright angles with each other, of a bearing-body interposed between said up= per and lower bearing-plates, said bearingbody being formed of an upperfand lower section, and springs interposed between said sections, and saidlower section hav-ing a curved under side bearing-surface adapted to roll-on the projection4and having-a transverse recess adapted to receive saidprojections sub stant-ially as specified.

4; In a side'bearingfor cars, the combination with atop'side-bearing plate adapted to be supported from a car and havingV its um der side formed with transverse corrugations and a bottom sidebearing plate adapted to be supported from a truck, ofa bearing-body interposed between said bearing-plates, said body consisting of adepressible non-rotating upper section and a-lower section and springs interposedv between said sections, said upper section beingvprov-ided with corrugations adaptedtomesh with those of the top sidebearing plate, substantially as specified.

SAMUEL fP. BUSH. In presence of- C. M. MoRRow,

C. SHEPHERD'.

IOO

IIO 

